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  1. richay

    How to accomplish Unicode file I/O operations in Fortran?

    Has anybody managed to get "File Open/Inquire" operations working in Fortran (Intel v.10.1) with a Unicode filename, such as Japanese? Any advice will be greatly appreciated. Richard Ay Intergraph CAS
  2. richay

    API-650 11th Ed Addendum 2 - Section V.8.1

    In the "US Customary Units" section, the 3rd definition for "psi" reads: [Pe + 10] for wind .... when Pe is greater than 15psf, but "psi" need not exceed 2.5. If Pe is greater than 15, then the summation is greater than 25. So we're going to reset 25 to 2.5 ? Perhaps there is a divisor...
  3. richay

    API-650 11th Ed Addendum 2 - Table 5-21b

    Is anyone aware of an errata published for the equations in this table? (If so an official URL to such a document would be most appreciated.) Several equations appear to be "copied" from 5-21a (design pressure+wind, design pressure+seismic, and frangibility pressure). These appear to be...
  4. richay

    API-650 Table 5-21b

    Comparing 11th Edition Addendum 2 to Addendum 1: In Addendum 2 the equations in Table 5-21b for "design pressue + wind", "design pressure + seismic", and "frangibility pressure" all have a constant of "0.08" as the mulitiplier for "th". However, the same equations in Addendum 1 use a constant...
  5. richay

    API-650 App V - Stiffener Required Inertia

    Section V.8.2.2.5 provides an equation for Ireqd (of an intermediate stiffener) with a constant of "648" in the numerator. Section V.8.2.3.2 provides an equation for Ireqd (of an end stiffener) with a constant of "684" in the numerator. Note that these constants are different: 648 versus 684...
  6. richay

    Appendix V - Radial Load Imposed on End Stiffeners

    In Section V.8.2.3.1 an equation is provided for the radial load imposed on an end stiffener (V1). Section V.3.1 (Nomenclature) provides the definition of V1 and states the units are (lb/ft). In the example (Section V.10.2.16), V1 is computed BUT the Code indicates the units are (lb/in). So...
  7. richay

    API-650 11th Ed, Add 1 - V.8.2.1.2 ?

    In the text of Section V.8.2.1.2 (page V-9) the equation for Hsafe shows a constant of 0.6. In the example, step 6 (page V-17), the equation for Hsafe uses the old constant value of 0.2. Which is correct, the text or the example ? Richard Ay COADE, Inc.
  8. richay

    API-650 11th Ed, Addendum 1 Questions

    I have a couple of questions regarding changes made in Addendum 1. 1) Paragraph 5.10.4.4 has changed the rafter spacing, providing a new (single) equation. The previous edition gave a spacing for both the inside and outside ends of the rafter. How is this new equation intended to be applied -...
  9. richay

    API-650 11th Ed, Add 1 - Table 5-1b

    Paragraph 5.3.5 states that when 6mm plate is specified, then 0.236 inch plate can be used with US Customary units. But does this mean the 1/4 inch values that used to be in Table 5-1b must change to 0.236? All the other values are standard US thicknesses. But 0.236 in this table? Could this...
  10. richay

    API-650 11th Ed - Seismic Cc Term

    API-650 11th Edition revised the equations for "Dynamic Liquid Hoop Forces". In equations E.6.1.4-4a and E.6.1.4-4b a new term (Cc) has been introduced. Perhaps I'm being blind, but does anybody know where this term (Cc) is defined? Thanks. Richard Ay COADE, Inc.
  11. richay

    Issues with API-650 Addendum 4 Errata

    The Errata has helped a lot, but there still appear to be a few issues ... Section 3.11.2 Should the term “Fby” be replaced with “Fy” as indicated in http://www.eng-tips.com/viewthread.cfm?qid=168184&page=1 ? E.4.9.1 Equation E-7 has not been corrected as per the notes of the API Fall...

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